<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
    <script src="./lib/vue_2.5.22.js"></script>
    <script src="./lib/vue-router_3.0.2.js"></script>
</head>

<body>
    <div id="app">
        <router-link to="/user">User</router-link>
        <router-link to="/register">Register</router-link>

        <!-- 补充代码3: 路由占位 -->
        <router-view></router-view>
    </div>

    <script>
        const User = {
            template: '<h1>User 组件</h1>'
        }

        const Register = {
            template: '<h1>Register 组件</h1>'
        }

        // 补充代码1 创建路由实例对象,并定义路由规则
        const router = new VueRouter({
            routes: [{
                path: '/user',
                component: User
            }, {
                path: '/register',
                component: Register
            }]
        })

        // 创建 vm 实例对象
        const vm = new Vue({
            el: '#app',
            data: {},
            // 补充代码2: 挂载路由实例对象
            router
        })
    </script>
</body>

</html>